Mark w



No Model.)

M. W DEWEY. ELECTRIC RAILWAY GAR.

- Patented Apia 15, .1890.

I No. 425,866.

WITNESSE I w 7 Q8 ATTORNEYS UNITED STATES PATENT OEEIcE.

MARK W. DEWEY, OF SYRACUSE, YORK, ASSIGNOR TO THE DEIVEY CORPORATION, OF SAME PLACE.

ELECTRIC-RAILWAY CAR.

SPECIFICATION forming part Of Letters Patent NO. 425,866, dated April 15, 1890.

Application filed April 8, 1889. Serial No. 306,323. (No model.)

To all whom it may concern:

Be it known that I, MARK W. DEWEY, of Syracuse, in the county of Onondaga, in the State of New York, have invented new and useful Improvements in Electric -Railway Cars, of which the following, taken in connection with the accompanying drawings, is a full, clear, and exact description.

My invention relates to improvements in electric railways.

The object of my invention is to enable the conductor of a car or the passengers thereon to communicate easily and instantly with the motor-man when desired to have the car started or its speed increased or decreased or the car stopped, and to eifect such communication by means of suitable electric signaling devices in a shunt-circuit around the motor for propelling the car, both being supplied with current through electric connections with the working-conductors arranged along the track.

The object of my invention is also to avoid the employment of primary or secondary bat- 2 5 teries for signaling purposes, as they are moro or less unreliable and inconvenient, and when the car is already supplied with current to propel, light, or brake the same to supply also.

the signal-circuit from'the same source; and

3 the invention consists, essentially, in supplying an electric motor on a car with electricity to propel the same from stationary electric supply or working conductors arranged along the track or roadway, and also supplying a 55 signaling-circuit on the car with electricity from the same source for signaling purposes.

The invention consists, further, in so conmeeting the signal-circuit with the conductor on the car that the signal devices therein may 4 be operated independent of the condition of the motor-circuit, for when the circuit to the motor is open-as, for instance, when the car is standing still-it will be necessary to signal to the driver or motor-man to start the car,

which could not be accomplished if the current-supply to the signal-circuit was cut off when the motor-circuit was opened. Again,

in order to economize in current and for the reason that the signaling-circuit requires but a small portion of the current supplied to the car, a rheostat of very high resistance is inserted in the signaling-circuit, and to perfectly control the strength of the current to flow therethrough the rheostat is made adj ustable. Besides the intermittent signaling- 5 5 bells at each end of the car, a continuousringing bell is so connected with the signaling-circuit as to be in circuit with the said rheostat and in operation at any time without interfering'with the other signaling mechan- 6o ism. Means are provided, hereinafter described, for cutting out and in any or all of of said bells.

It will be obvious that the electric connections may be such that the motor can be con- 6 5 trolled by the motor-man from either end of the car, as usual, and, as it is only necessary to operate the hell on the end of the car where the motor-man is stationed, thisbell is placed in circuit and the other out out. Then when the direction of the movement of the car is to be changed and the motor-man and conductor change places the cutting-out devices of the bells are reversed. These signal-bells are ordinary intermittent or single-tap bells.

The continuously ringing or vibrating bell is a danger-signal, which is preferably of a different tone from the other bells, and may be operated continuously or only when the car is in motion and as a call to notify peo- 8o ple in the neighborhood of the car at the terminus of the road that said car is nearly ready to start. A suitable circuit maker and breaker is provided for opening the circuit to said bell when desired, and may be arranged to be op- 8 5 erated from either end of the car, or a separatemaker and breaker for that purpose may be located at both ends of the car.

Referring to the drawings, Figure 1 is a sectional elevation of an electric-railway car 90, supplied with current from an overhead conductor and returning through the track and equipped with my invention. Fig. 2 is a diagram showing the arrangement of circuits on the car, and Fig. 8 is a section of an ordinary push-button adapted to be employed as a circuit maker and breaker inthe signal-circuit.

A represents the car or vehicle; B and B, the stationary electric-supply or line-workin g conductors arranged along the track or road- I00 Way; C, the conductor or electrical connection with the'line-conductors B and B, audit the source of electricity.

I do not limit myself to the location of the line-conductors, as the same may both be contained in a suitable conduit beneath the road-bed, overhead, or alongside of the track. Neither do I limit myself to the form of contacts traveling on the said conductors.

C is a current-reverser, and C an adj ustable resistance in the conductor 0 for controlling the motor D.

F is the shunt-circuit or signal-circuit, conneoted with the motor-circuit Gin proximity to the traveling contacts 0, so as to shunt the motor D and its controlling devices.

F" is the adjustable rheostat in said sl1unt circuit. Another rheostat F (shown in Fig. 2 in the form of an incandescent lamp) may be also included in said shunt to provide a resistance of a certain number of ohms required continually in circuit and occupying but little space.

G and G are the signal devices or singletap signal-bells, located one at each end of the car. 9 g are the switches for cutting in or out the said signal-bells by shunting them, and g the circuit makers and breakers or push-buttons, that remain normally open between the contact-points (Z and d by spring e, and may be closed by a slight pressure of the finger on the button I), bringing the said contactpoints together, closing the shuntcircuit through the said signal hell or bells in the circuit. One of said push-buttons may be located on the exterior at each end of the car and others between the windows on both sides of the car on the interior. The latter are for the convenience of the passengers. The said buttons are arranged in parallel or multiple are between the conductors of the shunt-circuit, while the resistance-F F and bells G and G are in series. By this arrangement there is no waste of current, as said current is permitted to flow through the said shunt-circuit only when a button is depressed.

In the drawings the bell G is shown in circuit and G cut out of circuit or shunted.

The adjustable resistance F in the shuntcircuit may be operated by hand or automatically in any suitable and Well-knownmanner to keep the current-supply constant and even in said shunt.

H is a signal device or bell adapted to ring continuously when the current is permitted to fiowthrough the branch conductor 11, in which said bell is connected. This bell is an ordinaryvibratory electric hell, not necessary to be specifically described herein. A suitable circuit maker and breaker h is located in the said branch to prevent the ringing of the bell when desired.

Having described my invention, what I claim as new, and desire to secure by Letters Paten t, is-

1. In an electric railway, a working-conductor arranged along the railway, a vehicle,

an electric motor to propel said vehicle, an

electric connection between said motor and working-conductor, a shunt-circuit around the motor on the vel1icle, au electric signal device at each end of the vehicle and connected in the shunt-circuit in series, means to cut one or the other of said signal devices outof circuit, and a plurality of Oll'Ollllr makers in multiple-arc connection with the shunt-circuit and distributed equal distances apart through the interior of the vehicle.

v2. In an electric railway, a working-conductor arranged along the railway, a traveling vehicle, an electric motor to propel said vehicle, an electric connection between said inotor and working-conductor, a normallyopen shunt-circuit around the motor on the vehicle, an electric signal-bell in said shuntcircuit, and a plurality of circuit-makers in multiple-arc connection with said shunt-circuit and distributed through the interior of the vehicle.

3. In an electric railway, a workin -conductor arranged along the railway, a traveling vehicle, an electric motor to propel said vehicle, an electric connection between said motor and working-conductor, a shunt-circuit around the motor onthe vehicle, a plurality of electric signal devices in circuit and located at each end of the vehicle, and a plurality of circuit makers and breakers in multiple-arc connection with said shunt-circuit Y and distributed through the interior of the vehicle, and means to cut one or more of the said signal devices out of circuit.

4. In an electric railway, a working'conductor arranged along the track, a traveling, vehicle, an electric motor to propel said vehicle, an electric connection between said motor and working-conductor, a normally-open shunt-circuit around the motor on the vehicle, an intermittent electric signal device, a pluralityof circuit makers and breakers and a rheost'at in said shunt-circuit a normallyclosed branch of said shunt-circuit, an electric signal device adapted to operate continuously in said branch, and means to out the latter device out of circuit to prevent the operation of the same, as set fort 5. In an electric railway, an electrically-pro pelled vehicle, an electric motor to propel said vehicle connected with the vehicle-conductor, a source of electric energy, a normally-open shunt-circuit around the motor on the vehicle, a plurality of electric signal devices in said shunt-circuit in series and located at each end of the vehicle, and a plurality of circuit makers and breakers in multiple-arc connection with said shuntrcircuit and distributed through the interior of the vehicle, as set forth;

6. In an electric railway, an electrically-propelled vehicle, an electric motor to propel said Vehicle, connected with the vehicle-conductor, a source of electric energy, a normally-open shunt-circuit around the motor on the vehicle, a plurality of electric signal devices in se- IIO r the shunt-circuit in series, means to out one or the other of said signal devices out of circuit, and a plurality of circuit-makers in multiple-arc connection with the shunt-circuit and distributed equal distances apart through the interior of the vehicle and on each side of the same.

8. In an electric railway, a working-conductor arranged along the railway, a vehicle, an electric motor to propel said vehicle, an electric connection between said motor and working conductor, a shuntcircuit around the motor on the vehicle, an electric signal device connected in the shunt-circuit, and a plurality of circuit-makers in multiple-arc connection with the shunt-circuit and distribnted equal distances apart through the interior of the vehicle and on each side of the same.

Intestimony whereof I have hereunto signed my name this 6th day of April, 1889.

MARK w. DE WEY; [n s] Witnesses:

C. H. DUELL, J. J. LAASS. 

